package c03数据类型和运算符;

/**
 * @author yuanwl
 * @date 2019-05-28 16:06
 */
public class 字符串与null拼接 {
	public static void main(String[] args) {
		String s = null;
		String s2 = "";
		System.err.println("|" + s + "|" + s2);
	}
}
